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comparison test/testendian.c @ 850:c203b4a42701

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Added an endian detection and byte swapping test program
author Sam Lantinga <slouken@libsdl.org>
date Mon, 23 Feb 2004 08:03:14 +0000
parents
children 983df4f9c1c6
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849:bab227101de4 850:c203b4a42701
1
2 /* Test program to check SDL's CPU endian detection and byte swapping routines */
3
4 #include <stdio.h>
5
6 #include "SDL.h"
7 #include "SDL_endian.h"
8
9 int main(int argc, char *argv[])
10 {
11 Uint16 value16 = 0xCDAB;
12 Uint32 value32 = 0xEFBEADDE;
13 #if defined(__GNUC__) && defined(SDL_HAS_64BIT_TYPE)
14 Uint64 value64 = 0xEFBEADDECDAB3412LL;
15 #endif
16
17 printf("This is a %s endian machine.\n",
18 (SDL_BYTEORDER == SDL_LIL_ENDIAN) ? "little" : "big");
19 printf("Value 16 = 0x%X, swapped = 0x%X\n", value16, SDL_Swap16(value16));
20 printf("Value 32 = 0x%X, swapped = 0x%X\n", value32, SDL_Swap32(value32));
21 #if defined(__GNUC__) && defined(SDL_HAS_64BIT_TYPE)
22 printf("Value 64 = 0x%llX, swapped = 0x%llX\n", value64, SDL_Swap64(value64));
23 #endif
24 return(0);
25 }